'13 Carrera- Gorgeous and more refined than its predecessor. Very expensive once you start putting options together. Pure sports car, imaginary back seats, stiff ride, ugly interior, no room.

Turbo- See above, but...it's a AWD and turbo.

M5- Beautiful interior, lots of cool tech, refinement, awesome trans, very fast, roomy, comfortable when necessary, or rougher when necessary, either way thats a option you control. Blends in, yet exclusive to those whom are enthusiasts.

I also considered the GTR, but the looks and quality are just not for me. Both are awesome cars and have very similar performance numbers.(GTR being a killer from launch, M5 being a killer from higher speeds) Two completely different monsters. What he said, you should also consider the e92 m3, I must say these cars just have to much power for every day driving. Or you could get an m5 for your DD and a 911. Try fitting 4 Girls in your GTR

I've had 3 of the cars on the list. GTR, M5 and 997 TT. All awesome cars!

As it states in above replies comparing the M5 to the others is really apples to oranges. For a daily driver the M5 is my first choice. Very comfortable. The GTR and 997TT are not comfortable for daily driving in my opinion.

The best analogy in comparing the GTR and 997TT would be digital verse analog. GTR is somewhat less interactive experience but is a better performer stock verse stock.

I purchased the M5 because I need a family car for kids to come. I couldn't squeeze the kids into a GTR or Porsche. The M5 I could put car seats in, and drive around in comfort mode with wife and kids happy, can take visiting family out comfortably. The M5 was 2 cars in one for me. Sports car, and family car. All others listed are sports cars. Just my 2 cents fwiw.